Disable accessibility when VoiceOver is turned off.

content/renderer/render_frame_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 1342 matching lines @@
     return;
   ImeEventGuard guard(GetRenderWidget());
   frame_->extendSelectionAndDelete(before, after);
 }
 
 void RenderFrameImpl::OnSetAccessibilityMode(AccessibilityMode new_mode) {
   if (accessibility_mode_ == new_mode)
     return;
   accessibility_mode_ = new_mode;
   if (renderer_accessibility_) {
+    // Note: this isn't called automatically by the destructor because
+    // there'd be no point in calling it in frame teardown, only if there's
+    // an accessibility mode change but the frame is persisting.
+    renderer_accessibility_->DisableAccessibility();
+
     delete renderer_accessibility_;
     renderer_accessibility_ = NULL;
   }
   if (accessibility_mode_ == AccessibilityModeOff)
     return;
 
   if (accessibility_mode_ & AccessibilityModeFlagFullTree)
     renderer_accessibility_ = new RendererAccessibilityComplete(this);
 }
 
@@ skipping 2734 matching lines @@
 
 #if defined(ENABLE_BROWSER_CDMS)
 RendererCdmManager* RenderFrameImpl::GetCdmManager() {
   if (!cdm_manager_)
     cdm_manager_ = new RendererCdmManager(this);
   return cdm_manager_;
 }
 #endif  // defined(ENABLE_BROWSER_CDMS)
 
 }  // namespace content